Book-shelf.



PATENTED MAY 30, 1905.

H. P. MACDONALD.

BOOK SHELF.

APPLIOATION FILED APR.29,1904.

Jl ll lh P T LIITI illi lilz5ses: 6&9. 7% J I is represented in the UNITED STATES Patented May 30, 1905.

PATENT .OFFICE.

BOOK-SHELF.

SPECIFICATION forming part of Letters Patent No. 791,153, dated May 30, 1905.

Application filed April 29, 1904. Serial No. 205,446.

To (Li/Z whom, it 171/012] concern.-

Be it known that I, HARRY P. MACDONALD, a citizen of the United States, and a resident of Jersey City, in the county of Hudson and State of N ewJ ersey, have invented a new and useful Improvement in Book-Shelves, of which the following is a specification.

My invention relates to an improvement in book-shelves, and has more particularly for its object to provide certain improvements in the construction, form, and arrange.- ment of the several parts with. res ect to each other whereby a very strong an light shelf may be formed capable of withstanding the weight of books placed thereon.

A further object is to provide a shelf of the above character which will be extremely cheap to manufacture and in which the parts are easily assembled.

A practical embodiment of my invention accompanying drawings, in which- Fi ure 1 is a to plan view of a portion of one orm of shel Fig. 2 is an end view; Fig. 3, a transverse section; Fig. 4, a side view; Fig. 5, a longitudinal section; Fig. 6, a partial top plan of the blank from which one of the longitudinal bars is formed, and Fig. 7 is a plan view of the blank from which one of the transverse end bars is formed.

In the form shown each transverse bar is formed from a blank of sheet metal so shaped that when the blank is bent to complete the end bar the said end bar will have a vertical portion 1, a lip 2 extended inwardly from its ower edge, and a plurality of flaps 3, bent downwardly from the upper edge of the vertical portion 1, each flap provided with two inwardly-bent wings 4. Each longitudinal bar is formed from a. blank which is so shaped that when the bar is completed it will have a horizontal ortion 5, provided with downwardly-extended sides 6 7, having upwardly-turned lips 8 9, the horizontal portion"5 having downwardly-turned flaps 10 11 at its ends. The transverse bars may further be provided with extensions 12, fitted to fold inwardly along the outer side of the outermost longitudinal bar.

When the shelf structure is set up, the adjacent wings 4 of two flaps 3 are embraced 'betweenthe lips 8 and 9 and the sides 6 and 7 of one of the longitudinal bars. The lip 2 of each transverse bar extends beneath the lower edges of the sides of the longitudinal bars. The flaps 10 and 11 at the ends of each longitudinal bar are folded down over the outer faces of the transverse bars. This makes a very strong shelf structure.

What I claim is 1. A book-shelf comprising transverse bars and longitudinal bars, each transverse bar having a vertical portion, and a plurality of flaps bent downwardly from the upper edge of the vertical portion, each flap provided with two inwardly-bent wings.

2. A book-shelf comprising transverse bars and longitudinal bars, each transverse bar having a vertical portion, a lip extended inwardly from its lower edge, and a plurality of flaps bent downwardly from the upper edge of the vertical portion, each flap provided with two inwardly-bent wings.-

3. A book-shelf comprising transverse bars and longitudinal bars, the transverse bars having downwardly-turned flaps located between the longitudinal bars and inwardlybent wings located within the longitudinal bars.

4. A book-shelf comprising transverse bars and longitudinal bars,the longitudinal bars having downwardly-extended sides and upwardly-turned lips, the transverse bars having downwardly-turned vflapslocated be tween the longitudinal bars and inwardlybent wings located between the sides and upwardly-turned lips of the longitudinal bars.

5. A book-shelf comprising transverse bars and longitudinal bars, the transverse bars having inwardly-turned lips beneath the longitudinal bars, downwardly-turnedflaps between the longitudinal bars and inwardlybent wings within the longitudinal bars.

6. A book-shelf comprising transverse bars and longitudinal bars, the transverse bars my invention I have signed 1nyna1ne,i11pres having downwardlyturned flaps between ence of two Witnesses, this 13th day of April, the longitudinal bars and inwardly bent 1904.

Wings Within said bars, the longitudinal bars HARRY P. MACDONALD. 5 having end flaps bent downwardly over the Witnesses:

outer faces of the transverse bars. FREDK. HAYNES,

In testimony that I claim the foregoing as C. S. SUNDGREN. 

